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Fuel Additive Guides

Your Guide to Getting the Correct Fuel Additive for Your Vehicle

Regardless of what kind of gas you use, fuel additives increase the mileage and performance of your vehicle. The main reason why motorists buy these products is to save money in the long run. A good additive allows your car to use lower gas grades without compromising its performance. With that said, not all additives are created equal and some don't work at all. It's important for you as a car owner to identify the genuine fuel additives from the fake or ineffective ones.

Choosing the Right Gas Grades

There are many factors that you need to consider before making the choice of getting the right fuel additive for your car, particularly when it comes to matching the additive tothe gas grade you're using. The better the additive, the more tolerant your car will be to cheaper, lower-grade gas. To be more specific, you need to take into consideration the nature of the engine, the cost, environmental concerns, efficiency, engine knocking, car manufacturer specifications, and the amount of octane in your vehicle.

Comparison of Different Gas Grades

The most popular gas grades used on cars at present are 87 octane regular, 89 octane plus, and 92 octane premium. There are some states that make use of 85, 88, and 91 octane levels, but they're much rarer and seen mostly in a few gas stations across the country. To wit:

  • 87 Regular: 87 Regular has low cost but low performance. It also leaves large amounts of residue behind. It's the cheapest gas grade available outside of the rare 85 octane grade.
  • 89 Plus: 89 Plus has medium cost, medium residue, and medium performance enhancement. It's mediocre all around.
  • 92 Premium: 92 Premium is the most expensive gas grade possible, delivering low residue and high performance for a comparably high cost as a high-octane gas solution.

Comparison of Different Additives

There are many additives for you to choose from. Look at the ingredients list of the product you're patronizing to see if they match with any of these common additive chemicals.

  • Ether: Ether is the starting fluid additive used for diesel engines and other difficult-to-start engines (like those found in diesel generators and gas lawnmowers).
  • Nitro: Nitro, on the other hand, is a well-known high-performance racing fuel that's also known as nitromethane.
  • Acetone: Acetone is a vaporization additive used with methanol racing fuel for startup vaporization improvement.
  • Butyl Rubber: Butyl Rubber or polyisobutylenesuccinimide is a detergent that prevents diesel fuel injector "fouling".
  • Picrate: Picrate increases your car's fuel mileage and improved combustion.


In the United States of America, the EPA (Environmental Protection Agency) requires registration of all additives that are commercially distributed for usage in motor vehicles in the country (as regulated by the Clean Air Act Section 211, amended in January 1995). This might necessitate bans on harmful additives and a battery of tests for all of them. As a motorist, you should research banned additives and only purchase EPA-approved one that's being sold over the Internet.


An additive essentially allows you to buy cheaper gas and get the same performance from more expensive high-octane fuel. Just remember that the amount of octane in the gas determines the longevity, performance, and mileage of the car while putting in the right additive can enable you to get away with using low-octane, low-grade gas while still getting top performance from your vehicle.

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